Question

1. how many triangles appear in the following drawing? a) 8 b) 4 c) 2 d) 10

Explanation:

Step1: Count small triangles

There are 4 small triangles formed by the intersection of the diagonals within the rectangle.

Step2: Count large - composed triangles

There are 4 large - composed triangles formed by combining two small triangles each.

Step3: Calculate total number

The total number of triangles is the sum of small and large - composed triangles, $4 + 4=8$.

Answer:

a) 8